ArticleArchives of disease in childhood2022
Haemoglobin and red blood cell reference intervals during infancy.
Article in Archives of disease in childhood, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
5 citing papers in PubMed.
- Infant Reference Intervals-Steps Towards Improving the Supportive Data for Result Interpretation.Acta paediatrica (Oslo, Norway : 1992) · 2025Review
- Iron - a background article for the Nordic Nutrition Recommendations 2023.Food & nutrition research · 2024Review
- Hyper high haemoglobin content in red blood cells and erythropoietic transitions postnatally in infants of 22 to 26 weeks' gestation: a prospective cohort study.Archives of disease in childhood. Fetal and neonatal edition · 2023Observational
- Hemoglobin and Its Z Score Reference Intervals in Febrile Children: A Cohort Study of 98,572 Febrile Children.Children (Basel, Switzerland) · 2023Article
- Lower iron stores were associated with suboptimal gross motor scores in infants at 3-7 months.Acta paediatrica (Oslo, Norway : 1992) · 2022Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
8 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
objectivesThere is a need for updated haematological reference data in infancy. This study aimed to define intervals for haemoglobin and red blood cell biomarkers based on data from a large cohort of longitudinally followed Swedish infants.
designLongitudinal cohort study.
settingTwo Swedish study centres.
participantsThree community-based populations including 442 presumably healthy infants born at term and with umbilical cord clamping delayed to 30 s or more after birth.
methodsBlood samples were collected from umbilical cord blood (a), at 48-118 hours (b), at 4 months (c) and at 12 months (d). Reference intervals as the 2.5th and 97.5th percentiles were calculated in coherence with Clinical and Laboratory Standards Institute guidelines.
resultsReference intervals for haemoglobin (g/L) were: (a) 116-189, (b) 147-218, (c) 99-130, (d) 104-134, and for mean cell volume (fL): (a) 97-118, (b) 91-107, (c) 71-85, (d) 70-83. Reference intervals for erythrocyte counts, reticulocyte counts, reticulocyte haemoglobin, mean cell haemoglobin and mean cell haemoglobin concentration were also estimated. According to the WHO definition of anaemia, a haemoglobin value less than 110 g/L, 16% of this presumably healthy cohort could be classified as anaemic at 12 months.
conclusionWe found mainly narrower reference intervals compared with previously published studies. The reference intervals for each parameter varied according to the infants' age, demonstrating the necessity of age definitions when presenting infant reference intervals. The discrepancy with the WHO classification for anaemia at 12 months, despite favourable conditions in infancy, needs future investigation.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.